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# Problem Tags Rating Solved
913-H Don't Exceed
math probabilities
3400
913-G Power Substring
math number theory
3200
913-F Strongly Connected Tournament
dp graphs math +1
2800
913-E Logical Expression
bitmasks dp shortest paths
2400
913-D Too Easy Problems
binary search brute force data structures +2
1800
913-C Party Lemonade
bitmasks dp greedy
1600
913-B Christmas Spruce
implementation trees
1200
913-A Modular Exponentiation
implementation math
900
912-E Prime Gift
binary search dfs and similar math +3
2400
912-D Fishes
data structures graphs greedy +2
2100
912-C Perun, Ult!
brute force greedy sortings
2500
912-B New Year's Eve
bitmasks constructive algorithms number theory
1300
912-A Tricky Alchemy
implementation
800
911-G Mass Change Queries
data structures
2500
911-F Tree Destruction
constructive algorithms dfs and similar graphs +2
2400
911-E Stack Sorting
constructive algorithms data structures greedy +1
2000
911-D Inversion Counting
brute force math
1800
911-C Three Garlands
brute force constructive algorithms
1400
911-B Two Cakes
binary search brute force implementation
1200
911-A Nearest Minimums
implementation
1100
910-C Minimum Sum
constructive algorithms greedy math
1700
910-B Door Frames
greedy implementation
1600
910-A The Way to Home
dfs and similar dp greedy +1
800
909-F AND-permutations
constructive algorithms
2500
909-E Coprocessor
dfs and similar dp graphs +1
1900
909-D Colorful Points
data structures greedy implementation
2100
909-C Python Indentation
dp
1800
909-B Segments
constructive algorithms math
1300
909-A Generate Login
brute force greedy sortings
1000
908-H New Year and Boolean Bridges
3100
908-G New Year and Original Order
dp math
2800
908-F New Year and Rainbow Roads
graphs greedy implementation
2400
908-E New Year and Entity Enumeration
bitmasks combinatorics dp +1
2500
908-D New Year and Arbitrary Arrangement
dp math probabilities
2200
908-C New Year and Curling
brute force geometry implementation +1
1500
908-B New Year and Buggy Bot
brute force implementation
1200
908-A New Year and Counting Cards
brute force implementation
800
907-B Tic-Tac-Toe
implementation
1400
907-A Masha and Bears
brute force implementation
1300
906-E Reverses
dp string suffix structures strings
3300
906-D Power Tower
chinese remainder theorem math number theory
2700
906-C Party
bitmasks brute force dp +1
2400
906-B Seating of Students
brute force constructive algorithms math
2200
906-A Shockers
implementation strings
1600
903-G Yet Another Maxflow Problem
data structures flows graphs
2700
903-F Clear The Matrix
bitmasks dp
2200
903-E Swapping Characters
brute force hashing implementation +1
2200
903-D Almost Difference
data structures math
2200
903-C Boxes Packing
greedy
1200
903-B The Modcrab
greedy implementation
1200